First direct probe of strong nuclear force

栏目: IT技术 · 发布时间: 5年前

Extended Data Fig. 1 SRC pair breakup.

Diagrammatic representation and four-momentum kinematics of the two-nucleon knockout A( eeNp ) reaction within the SRC model. The dashed red lines represent off-shell particles and solid black lines represent detected particles. The A −2 system is undetected.

Extended Data Fig. 2 Kinematical distributions and A( eepp )/A( eep ) ratios for A  = 12–208 nuclei.

ac , Comparison of the number of A( eep ) event reactions versus the ( eep ) missing momentum p miss ( a ), Q 2 ( b ) and x B ( c ). df , Comparison of the number of A( eepp ) event reactions versus the ( eep ) missing momentum p miss ( d ), Q 2 ( e ) and x B ( f ). The total number of counts in aluminium (cyan), iron (orange), and lead (purple) was scaled to match that of carbon (dark blue). The shaded bands indicate the 1 σ statistical uncertainty of the data.

Extended Data Fig. 3 Momentum-transfer and missing-momentum angular correlations.

ad , Distribution of the relative angle between the momentum transfer q and the ( eep ) missing momentum for A( eep ) ( a , b ) and A( eepp ) ( c , d ). The panels at left compare the 12 C data and GCF calculations using different NN interaction models ( a , c ); and the panels at right compare the data for carbon (blue), aluminium (cyan), iron (orange), and lead (purple) nuclei ( b , d ). The total number of counts in the aluminium, iron and lead data has been scaled to match that of carbon. In a and c , the width of the band and the data error bars show the model systematic uncertainties and data statistical uncertainties, respectively, each at the 1 σ confidence level. The shaded bands in b and d indicate the 1 σ statistical uncertainty of the data.

Extended Data Fig. 4 Electron and proton kinematics.

Momentum and angle distributions of scattered electrons and protons for 12 C( eep ) ( a , c , e , h ) and 12 C( eepp ) ( b , d , f , g , i , j ) events. Coloured bands show the various GCF calculations. The width of the shaded band and the data error bars show the model systematic uncertainties and data statistical uncertainties, respectively, each at the 1 σ confidence level.

Extended Data Fig. 5 Kinematic correlations of 12 C( eep ) events.

a , Q 2 versus the missing-momentum distribution of 12 C( eep ) data. Owing to the event selection criteria, as p miss approaches 1 GeV/ c , the minimum Q 2 of the data approaches 3 GeV/ c . b , E miss versus p miss of the 12 C( eep ) data. The red line indicates the expected E missp miss correlation for the breakup of a stationary pair.

Extended Data Fig. 6 Universal functions for pp and np pairs and the momentum dependence of their ratio.

The relative momentum distributions for different NN interaction models studied in this work, for pn ( a ) and pp ( b ). c , The momentum dependence of the fraction of protons belonging to pp SRC pairs in 12 C.

Extended Data Fig. 7 Light-cone calculations of the nuclear spectral function and momentum fractions.

aj , As in Fig.3a–j. k , l , The reconstructed initial light-cone momentum fraction carried by the struck nucleon for ( eep ) ( k ) and ( eepp ) ( l ) events. m , The total pair light-cone momentum fraction for ( eepp ) events. The data points are identical to those in Fig. 3a–j. The bands are different and show the results of the GCF calculations using light-cone formalism and various NN interaction models. The width of the shaded band and the data error bars show the model systematic uncertainties and data statistical uncertainties, respectively, each at the 1 σ confidence level.

Extended Data Fig. 8 Scale dependence and non-local interactions.

ac , As in Fig.3a, b ( a , b ) and Fig.2a ( c ), but also including the non-local N3LO (600 MeV/ c ) interaction. The width of the shaded band and the data error bars show the model systematic uncertainties and data statistical uncertainties, respectively, each at the 1 σ confidence level. See Methods for details.

Extended Data Table 1 Extracted contact ratios \({{\boldsymbol{C}}}_{{\boldsymbol{p}}{\boldsymbol{p}}}^{{\boldsymbol{s}}={\bf{0}}}/{{\boldsymbol{C}}}_{{\boldsymbol{n}}{\boldsymbol{p}}}^{{\boldsymbol{s}}={\bf{1}}}\) for different nuclei

Full size table


以上所述就是小编给大家介绍的《First direct probe of strong nuclear force》,希望对大家有所帮助,如果大家有任何疑问请给我留言,小编会及时回复大家的。在此也非常感谢大家对 码农网 的支持!

查看所有标签

猜你喜欢:

本站部分资源来源于网络,本站转载出于传递更多信息之目的,版权归原作者或者来源机构所有,如转载稿涉及版权问题,请联系我们

互联网+

互联网+

马化腾 / 中信出版社 / 2015-5-1 / CNY 58.00

中国进入新常态,李克强总理制定*“互联网+”行动计划以推动经济进一步发展,并认为站在“互联网+”风口顺势而为,可以使经济飞起来。 《互联网+:国家战略行动路线图》由“互联网+”理念的提出者于扬、*强有力推动者马化腾等创作。书稿从理论层面、实践经验等多个角度,结合当下各产业的现状、发展趋势,全方位进行阐述,以通俗易懂的文字将这一经济发展新引擎呈现出来,并对读者如何抓住新时期的机遇有切实的指导意......一起来看看 《互联网+》 这本书的介绍吧!

CSS 压缩/解压工具
CSS 压缩/解压工具

在线压缩/解压 CSS 代码

Markdown 在线编辑器
Markdown 在线编辑器

Markdown 在线编辑器

RGB HSV 转换
RGB HSV 转换

RGB HSV 互转工具